Sassbook is an AI writer tool which you can use for free with limitations. The tool lets you input both a prompt and a main topic in order to generate more accurate results. Unfortunately, the free version is limited to 25 words per generation and 20 generations per day. Whilst this is enough to give the tool a quick try, it’s not going to be sufficient for long-form article generation, and there are probably better options when it comes to paid AI writers on the market such as, and Jasper.